i chiked the websit and it isnt r8 becous:
Suigetsu dosnt even lock like sai
imean come on now:
-1 ther smill is defrent
-2 they dont even have the same teath
-3 sai dosnt even know one water jutsu
-4 sai har is black

@adel123
It's not said, that they are related by blood.
First line written on... OK I'm not allowed to post links but you'll find the thread if you click the first link in the first post of the link posted.